Saw-swage.



PATENTED MAY 15, 1906. 0. DION.

SAW SWAGE.

APPLIGATION FILED AUG.4,1904

Z SHEETB-SHEET1 I the outside to the slot 2.

UNITED STATES ODEY DION, OF PORTLAND, OREGON.

SAW-SWAGE.

Specification of Letters Patent.

Patented May 15 1906.

Application filed August 4, 1904. Serial No. 219,519.

To all whom it may concern.-

Be it known that I, ODEY DION, a citizen of the United States, residingat Portland, in the county of Multnomah and State of Oregon, haveinvented certain new and useful Improvements in Saw-Swages, of which thefollowing is a specification.

The invention relates to saw-swages.

The object of the invention is to improve the construction of swagesused in swaging band, circular, or other saw teeth.

The invention consists in certain improvements in the construction ofparts and in the combination of elements which go to make up thesaw-swage, as will be pointed out in the claim.

Figure 1 is a perspective view of the sawswage or swaging-machine asapplied to the teeth of a saw. Fig. 2 is an enlarged side elevation ofthe saw-swage, omitting levers and attachments. Fig. 3 is a reverse sideelevation of Fig. 1 with rear gage omitted. Fig. 4 is a front elevationthrough the supportingbar of the front gage. Fig. 5 is a brokenlongitudinal section of the frame or head and some of its attachments asapplied to sawteeth. Fig. 6 is a cross-section of the head and some ofits attachments, including toothclamp, on line 6 6,.Fig. 5. Fig. 7 is acrosssection on line 7 7, Fig. 5. Fig. 8 is a crosssection of theswaging-cam. Fig. 9 is an end view of the anvil. Fig. 10 is a brokenelevation of one of the hand-levers attached to a screw or spindle.

The numeral 1 indicates the head or frame to which the other parts ofthe swage are connected. This head is ashort cylindrical casting, havinga slot or groove 2 extending transversely to the axis of the head, inwhich slot the saw-blade A is placed in the operation of swaging. Thehead has a threaded bore 3 extending about radially of the head from Inthis bore an anvil4is placed. The anvil 4 is preferablyflattened on oneside and is held against turning in the bore 3 by a set-screw 6, bearingagainst the flattened side of the anvil. Screw 6 extends through athreaded bore in the head 1. The anvil 4 is held down byaretaining-screw 7, bearing on top of the anvil and adjustable in thebore 3 of the head. The anvil is of hardened steel and can be extendedmore or less into slot 2 of the head as desirable.

A cylindrical bore 8 extends through the head 1 parallel with the axisof said head and passing through the notch 2 of said head. In

this bore a spindle 9 has its bearings. Said spindle is dressed off tocam shape in the slot of the head, as indicated at 10, Fig. 8. The exactshape of the cam depends on the character of the work. The cam is almostimmediately below anvil 4, and by the rotation of the cam a saw-tooth isswaged between the cam and anvil. (See Fig. 5.) The spindle 9 has alever or handle 11 attached, and this handle serves as a means forrotating cam 10. The spindle 9 can be easily removed and replaced inhead 1. The spindle may slide longitudinally in its bearing, so as tobring other parts of the cam under the anvil 4 in the head. The spindle9 is held in split handle 11 by a set-screw 12, so that the spindle canbe rotated and the cam adjusted. Such adjustment ofhand-levers iscommon. Several cam-spindles may be used, being changeable as desired. Atapered opening 15 in one end of the head 1 allows the operator to seethe work from outside, and the opening serves as a vernier sight-gagefor the adjustment of the anvil 4 and the cam 10 for the accurateperformance of the work, as the tapered opening always has its terminalface at an angle to the teeth of the saw and slight deviations can beobserved by sighting down the inclined face of said opening from variouspoints of view. An oil-cup 16, connected to the head, has a passage 17for oil, terminating in the head 1 just above the position of the cam10. Lubricant is thus automatically fed to the cam when in operation.

There is a clamp-screw 14 extending from one end of the head 1 into theslot 2. This clamp-screw can be adjusted in usual manner. Directly online with the clamp-screw 14 there is a threaded hole at the other sideof slot 2, and a hardened bushing 18 screws into the hole. A clamp-screw19 is threaded through the bushing and is operated by the hand-lever 21,which is split and adjustably secured to screw 19 by set-screw 22. Thusthe clamp-screws 14 and 19 can be adjusted to such relation to eachother that they are ready to clamp a saw-tooth, as in Fig. 6, with aslight movement of lever 21. This lever 21 holds against the pressure oflever 11, which swages the adjacent tooth. The pressure applied tolevers 1 1 and 21 is in practically opposite directions, and the entiremachine can be very quickly clamped and operated to swage a tooth by amovement of the two hands of the operator, grasping the levers 11 and 21as common. The head 1 is held in a clamping- ITO band 24 and can berotatively adjusted and held in said band by the adjustment of set screw25. An index 26 on the head and clamping-band shows the extent of suchadjustment.

Band 24 has a rigid arm 28 projecting forward. This arm 28 is slotted,and a bolt 29 is adjustable in said slot, being held in adjustedposition by nut 30. Bolt 29 passes through a yoke 31, binding said yoketo arm 28. Through holes in this yoke 31 a spindle 32 extends, and thespindle .32 issurrounded by a coiled spring 33. The upper end of thisspring bears against the upper bar of yoke 31, and the lower end of thespring 33 bears on a shoulder 34 of said spindle 32, pressing thespindle downward. A nut 36 prevents the escape of the spindle byengaging a thread thereon above yoke 31. The lower end of spindle 32 isforked. Within the fork there is a trough 37 held to the fork by a pivot38. The trough rests on top of a number of teeth of a saw, and beingfree to turn on pin or pivot 38 adjusts itself to the position of suchteeth whether their points be in line, as on a band-saw, or on a curve,.as in a circular saw. The forked ends 40 of spindle 32 extend downalongside of the saw-blade, and the sides of slot 2 in head 1 alsostraddle the saw-blade. Thus the machine is held quite securely to thesaw-blade whether the clamp 14 19 is compressed or not. The trough 37and spindle 32 and attachments form the front gage or rest of theswaging-machine. An arm 4]. extends rigidly from band 24 in rear of theswage. This arm 41 has a rear gage 42 attached by means of a bolt 43,passing through the gage and arm, and the gage is secured by a crank-nut44. The rear gage can be easily adjusted to position, so as to rest on atooth in llgear of the tooth which is being swaged, as in The operationof my swaging-machine will be generally understood from the foregoingdescription. The saw is held firmly in any suitable and usual way. Themachine is applied thereto as indicated, the rear gage 42 beingcarefully adjusted and the front gage approximately so. The trough ofthe front gage adjusts itself, and the splndle yields for slightinequalities in the teeth. The front gage is adjustable to all forms ofsaws in common use by means of the mechanism described. In operation thework is open to observation through hole 15, and the cam and anvil canbe carefully adjusted by observation at the same place.

What I claim is The combination with a slotted head having an anvil anda cam carried by the head, of a band rotatably adjustable about saidhead, arms connected to said band in front and rear of the head, andseparate gages to rest on the saw-teeth, adj ustably connected to saidarms.

In testimony whereof I affix my signature in presence of two witnesses.

ODEY DION.

Witnesses:

RICHARD C. BRANCH, JOHN T. WHEATMAn.

